基于浅层地震勘探的滹沱河断裂第四纪活动性研究  

Study on the Activity of the Hutuohe Fault in Quaternary Based on Shallow Seismic Exploration

作　　者：彭远黔[1] 高武平[2] 冉志杰[1] 王红蕾[1] 朱坤静 张安东 王志胜[2] PENG Yuanqian;GAO Wuping;RAN Zhijie;WANG Honglei;ZHU Kunjing;ZHANG Andong;WANG Zhisheng(Hebei Earthquake Agency,Shijiazhuang 050021,China;Tianjin Earthquake Agency,Tianjin 300201,China;Handan Earthquake Monitoring Center,Handan 056002,China)

机构地区：[1]河北省地震局,石家庄050021 [2]天津市地震局,天津100081 [3]邯郸市地震监测中心,河北邯郸056002

出　　处：《华北地震科学》2024年第4期35-43,共9页North China Earthquake Sciences

基　　金：河北省地震科技星火计划(DZ2023120500004);中国地震局地震科技星火计划(XH23004YA、XH23005A)。

摘　　要：通过浅层地震勘探,结合标准钻孔、区域钻孔联合剖面、周边石油物探剖面以及断裂构造等资料,对滹沱河断裂的第四纪活动性开展研究。浅层地震勘探揭示,滹沱河断裂错断多套第四纪地层,为倾向NE的正断层,视倾角约80°,可识别的上断点埋深为92 m以浅,下更新统底界的垂直错距为13 m;结合该区域第四系地层划分结果,初步认为断裂最新活动时代为早更新世晚期。In this paper,the Quaternary activity of the Hutuohe Fault is studied by shallow seismic exploration,combined with standard borehole,regional borehole section,petroleum geophysical profile and fault structure.Shallow seismic exploration reveals that the Hutuohe Fault is a normal NE-trending fault with a dip angle of about 80°.The discernible upper fault point is buried in a shallow depth of shallower than 92 m and the vertical offset at the lower Pleistocene bottom boundary is 13 m.According to the stratigraphic division of the Quaternary in this area,the latest active age of the fault is considered to be late Early Pleistocene.

关 键 词：石家庄凹陷 滹沱河断裂 浅层地震勘探 晚第四纪活动 

分 类 号：P315.9[天文地球—地震学]